CN213485127U

CN213485127U - Earphone and matching device

Info

Publication number: CN213485127U
Application number: CN202022417432.6U
Authority: CN
Inventors: 提前; 胡再国
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-06-18
Anticipated expiration: 2030-10-27

Abstract

An earphone and a matching device, which is a novel earphone that replaces electrical elements by acoustic elements and directly transmits sound signals to human ears from a multimedia player, and comprises a sound signal collecting structure, a sound mediating and playing structure, a sound signal external amplifier and a sound collecting matching device and the like; the earphone can avoid the problem that the service life of the earphone is short due to the fact that welding points of electrical elements are not firm, the weight of the earphone at the ear of a person is reduced, the design freedom degree of the part of the horn mouth is improved, meanwhile, the hardware design of a multimedia host is simplified, and the size of the multimedia host is reduced; reduce the electromagnetic radiation brought to the human body by the electromagnetism earphone.

Description

Earphone and matching device

Technical Field

The invention relates to a sound transmission device, in particular to an earphone and a matching device thereof.

Background

The earphone can transmit sound signals to human ears, and meanwhile, sound pollution to the surrounding environment is avoided. At present, the basic principle of the earphone is to receive an electrical signal sent by a media player or a receiver, and convert the electrical signal into an acoustic signal acceptable to human ears by using a speaker close to the ears and an additional design structure thereof, and the earphone is generally connected with the media player by using a metal adapter.

The existing wire control earphone structure mostly adopts electrical elements, the welding points of the existing wire control earphone structure are easy to be in poor contact and even fall off after long-term use, and the structure is not firm due to the existence of element connection; at present, the ear-in type and earplug type earphones are easy to fatigue after being used for a long time because the sounding horn is directly arranged in the earphone sounding device close to the ear of a person, so that the weight of the sounding mechanism is born by the ear of the person, and the volume of the sounding mechanism is born by the outer ear; the existing multimedia host has two completely different mechanisms of an external playing structure and an earphone playing structure, which respectively transmit two different signals of an acoustic signal and an electric signal, except for a circuit, one of the two different mechanisms needs to contain a loudspeaker, and the other needs to reserve the volume of an earphone cord plug, and simultaneously occupy the design space of the multimedia host, for example, the design space occupies approximately half of the space of a small plate structure of a smart phone, which goes against the mainstream trend of reducing the volume of the multimedia host (such as the smart phone and a tablet personal computer), and the simplicity of the design of the host is influenced.

Disclosure of Invention

In order to overcome the defects that the structure of the existing earphone is not firm, the welding points of electrical elements are easy to be in poor contact and even fall off, the man-machine coordination performance is not good, and the ears of a person are easy to be fatigued after the earphone is used for a long time; the invention provides a novel earphone and a matching device thereof, wherein an external playing structure and an earphone playing structure of a multimedia host are two completely different mechanisms, and two different signals, namely an acoustic signal and an electric signal, are transmitted respectively, so that the defect of simplicity of the design of the host is overcome.

Based on acoustic principles, sound waves propagate in the form of a mechanical wave. When sound waves are transmitted at interfaces of different media, the sound waves can be reflected and refracted at the interfaces simultaneously; in particular, when the acoustic wave propagates from the medium 1 to the medium 2, assuming that the acoustic impedance coefficients of the two media are Z1 and Z2, respectively, and the reflection coefficient R thereof is [ (Z2-Z1)/(Z2 + Z1) ], when Z2 is far greater than Z1, a case where the reflectivity is high and the transmittance is low, close to the total reflection, will be formed. At this time, the energy of the sound wave will be bound to the medium 1, and since the acoustic impedance of the medium 1 is small, the energy loss of the sound wave during transmission will also be small. In accordance with this principle, a new type of earphone is designed that relies on an acoustic element instead of an electrical element to directly transmit acoustic signals from a multimedia player to the human ear. The technical scheme of the invention is realized as follows: a novel earphone and a matching device thereof comprise an acoustic signal collecting structure, an acoustic adjusting and playing structure and an acoustic signal external amplifier and acoustic acquisition matching device; the sound signal collecting structure and the sound adjusting and playing structure are connected through a sound signal transmission line; wherein the content of the first and second substances,

the sound signal collecting structure comprises a connecting buckle and a sound signal gathering and receiving structure, and the connecting buckle is matched with a connecting clamping groove in the sound signal external-playing and sound collecting configuration device;

the sound mediation and playing structure comprises a sound signal transition mediation cavity and a sound signal playing port;

the sound signal external-playing and sound collecting configuration device comprises: the sound processing chip, the electrical connecting wire, the electrical sound player, the sound signal external playing port and the connecting clamping groove on the multimedia host are sequentially and tightly connected in series; the sound processing chip, the electrical connecting wire, the sound signal acquisition port and the connecting clamping groove are sequentially and tightly connected in series.

Further, connect the loudness adjusting device on the acoustic signal transmission line between sound signal collection structure and the sound mediation and the broadcast structure, loudness adjusting device includes shell, gyro wheel, accent sound piece, and the gyro wheel rolls and drives the accent sound piece and reciprocates.

Furthermore, the lower thin layer of the sound adjusting block is made of a material with a large sound reflection coefficient, and the upper thin layer of the sound adjusting block is made of a material with a large sound absorption coefficient.

Further, the acoustic signal transmission line comprises an outer layer of acoustically thin flexible material and an inner layer of acoustically thin flexible material.

Further, still include the sound collection microphone, be connected to the sound signal through the acoustic signal transmission line and gather the mouth, establish data line mechanical connecting ring on the sound collection microphone and be used for connecting the loudness adjusting device.

The invention has the beneficial effects that: the earphone can avoid the problem of short service life of the earphone caused by insecure welding points of electrical elements, reduce the weight of the earphone at the ear of a person, improve the design freedom of the horn mouth of the part, simplify the hardware design of a multimedia host computer and reduce the volume of the multimedia host computer; reduce the electromagnetic radiation brought to the human body by the electromagnetism earphone.

Drawings

Fig. 1 is a schematic view of a headset structure;

FIG. 2 is a cross-section of an acoustic signal transmission line;

FIG. 3 is a diagram of a companion device on a multimedia host;

fig. 4 is a diagram of an acoustic loudness adjustment apparatus.

Wherein: 1. an acoustic signal collection structure; 2. an acoustic signal transmission line; 3. a sound loudness adjusting means; 4. a sound mediation and play structure; 6. A sonication chip; 7. the sound signal is put and the sound gathers the supporting device; 8. connecting a buckle; 9. an acoustic signal gathering receiver structure; 10. an acoustic signal transmission line start end; 11. a layer of acoustically phobic flexible material; 12. a layer of acoustically-transparent flexible material; 13. a housing; 14. a roller; 15. a tone tuning block; 16. an acoustic signal transmission line terminal; 17. an acoustic signal transition mediation cavity; 18. an acoustic signal playback port; 20. A sound collection microphone; 21. a multimedia host; 22. an electrical connection line; 23. an electrical sound player; 24. an acoustic signal external playing port; 25. an acoustic signal acquisition port; 26. a connecting clamping groove; 27. The data line is mechanically connected with the ring.

Detailed Description

The invention will be further illustrated with reference to specific examples.

As shown in fig. 1-4, a novel earphone and a matching device thereof comprises an acoustic signal collecting structure 1, an acoustic mediation and playing structure 4, and an acoustic signal external amplifier and acoustic acquisition matching device 7; the acoustic signal collecting structure 1 is connected with the acoustic mediation and playing structure 4 through an acoustic signal transmission line 2; wherein the content of the first and second substances,

the sound signal collecting structure 1 comprises a connecting buckle 8 and a sound signal gathering and receiving structure 9, the connecting buckle 8 is matched with a connecting clamping groove in the sound signal external-playing and sound collecting matching device 7, and the connecting buckle 8 and the connecting clamping groove 26 have good sound insulation performance after being connected;

the sound mediation and playing structure 4 comprises a sound signal transition mediation cavity 17, and the sound signal transition mediation cavity 17 can guide the sound to be better concentrated in the auditory canal and reduce the diffusion to the surrounding environment; sound effects for some specific frequency characteristics may help create effects like live sound, sound signal playback port 18;

the sound signal external-playing and sound collecting matching device 7 is as follows: the sound processing chip 6, the electrical connecting wire 22, the electrical sound player 23, the sound signal external playing ports 24 and the connecting card slot 26 on the multimedia host 21 are sequentially and tightly connected in series; the sound processing chip 6, the electrical connection wire 22, the sound signal acquisition port 25 and the connection card slot 26 are sequentially and tightly connected in series.

Connect the sound intensity adjusting device 3 on the acoustic signal transmission line 2 between the acoustic signal collection structure 1 and the sound mediation and play structure 4, the sound intensity adjusting device 3 includes shell 13, gyro wheel 14, accent sound piece 15, and the roll of gyro wheel 14 drives accent sound piece 15 and reciprocates. The lower thin layer of the sound adjusting block 15 is made of a material with a large sound reflection coefficient, and the upper thin layer is made of a material with a large sound absorption coefficient.

The acoustic signal transmission line 2 comprises an outer-layer sound-repellent flexible material layer 11 and an inner-layer sound-attracting flexible material layer 12, wherein the surface of the sound-repellent flexible material layer 11 is smooth, so that noise caused by friction is reduced and transmitted in a line.

Still include sound collection microphone 20, be connected to sound signal collection mouth 25 through acoustic signal transmission line 2, establish data line mechanical connecting ring 27 on the sound collection microphone 20 and be used for connecting sound loudness adjusting device 3.

In the electrical transmission of acoustic signals: the sound signal is generated by the sound processing chip 6 and the sound signal external amplifier and sound collection matching device 7 in a combined control mode, the sound processing chip 6 provides different electrical signals according to an external amplifier mode and an earphone mode, so that the sound signal external amplifier port 24 is converted into the sound signal to generate sound signals suitable for different modes, the external amplifier mode and the earphone mode have different power, and the sound signals in the earphone mode are played in a pulse mode to obtain sound signals with better effect. In the play-out mode the acoustic signal is played directly. In the earphone mode, the sound signal collecting structure 1 is connected with the sound signal discharging port 24 of the multimedia host at the connecting card slot 26, and a closed space with high reflectivity and low transmissivity is formed at the connecting position. The acoustic signal external playing port 24 outputs the acoustic vibration signal of the bell mouth, and the acoustic vibration signal of the bell mouth is directionally transmitted into the initial end 10 of the acoustic signal transmission line by the acoustic signal gathering and receiving structure 9 which is tightly contacted with the acoustic signal external playing port 24.

The acoustic signal reaches the terminal 16 of the acoustic signal transmission line through the acoustic signal transmission line 2, and is transmitted to the human ear through the acoustic signal playing port 18 after being modulated by the acoustic signal transition modulation cavity 17. The sound signal transition regulation cavity 17 and the sound signal playing port 18 can be designed, after a material with proper characteristics is selected, the sound signal playing port 18 is attached to the human ear through appearance design, so that the human-computer coordination is met, and the body fatigue caused by wearing the earphone for a long time is relieved.

When the loudness is required to be adjusted, the roller 14 of the loudness adjusting device 3 can adjust the loudness blocks to move up and down when rolling, and the more the loudness blocks are inserted into the acoustic signal transmission line 2, the more the sound is absorbed, and the smaller the loudness is.

When the earphone is used as a microphone, the earphone produces sound towards the sound collection microphone 20, a human voice signal reaches the sound signal collection port 25 through the sound signal transmission line 2 and is converted into an electric signal, and then the sound signal is transmitted electrically and is processed by the sound processing chip 6 and finally used by a multimedia host.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.

Claims

1. An earphone and a matching device are characterized by comprising an acoustic signal collecting structure (1), an acoustic adjusting and playing structure (4) and an acoustic signal external amplifier and acoustic acquisition matching device (7); the sound signal collecting structure (1) is connected with the sound adjusting and playing structure (4) through a sound signal transmission line (2); wherein the content of the first and second substances,

the sound signal collecting structure (1) comprises a connecting buckle (8) and a sound signal gathering and receiving structure (9), and the connecting buckle (8) is matched with a connecting clamping groove in the sound signal external amplifier and sound acquisition matching device (7);

the sound mediation and playing structure (4) comprises a sound signal transition mediation cavity (17) and a sound signal playing port (18);

the sound signal external-playing and sound collecting matching device (7) is as follows: an acoustic processing chip (6), an electrical connecting wire (22), an electrical sound player (23), an acoustic signal external playing port (24) and a connecting card slot (26) on the multimedia host (21) are sequentially and tightly connected in series; the acoustic processing chip (6), the electrical connecting wire (22), the acoustic signal acquisition port (25) and the connecting clamping groove (26) are sequentially and tightly connected in series.

2. The earphone and the matching device as claimed in claim 1, wherein the sound signal transmission line (2) between the sound signal collecting structure (1) and the sound adjusting and playing structure (4) is connected with a sound intensity adjusting device (3), the sound intensity adjusting device (3) comprises a shell (13), a roller (14) and a sound adjusting block (15), and the roller (14) rolls to drive the sound adjusting block (15) to move up and down.

3. The earphone and the kit according to claim 1, characterized in that the acoustic signal transmission line (2) comprises an outer layer of acoustically thin flexible material (11) and an inner layer of acoustically thin flexible material (12).

4. The earphone and the kit according to claim 1, further comprising a sound collecting microphone (20) connected to the sound signal collecting port (25) through the sound signal transmission line (2), wherein the sound collecting microphone (20) is provided with a data line mechanical connection ring (27) for connecting the sound loudness adjusting device (3).